A Content Management System is simply a system that is used to manage the content of a website.

Ok, that definitely really doesn't tell us much, so let's break it down.

When someone says, "I want to be able to edit my own content on my own site and change it anytime I want", they are referring to a Content Management System (CMS).  You can edit font size, font color, add images, move stuff around, delete images, add links, and much much more.  CMS's come in all shapes and sizes with various price ranges.  So how do you know which one is right for you?

I always advise people to tread lightly when looking for a CMS.  Why?

You will be using this system pretty often (maybe multiple times a day) and these systems aren't exactly cheap.  Spend some time doing research, and I ALWAYS advise "test-driving" the system. You really won't know the full limitations and advantages for using 1 system versus another until you actually play around with them.

Also, a lot of people seem to have this thought in there head that it's exactly like editing things in microsoft word, well, it is to an extent. You have to realize that you aren't just changing words, you are changing website code (html code).  I won't get into the details of what happens behind the scenes, but sometimes what you want to see and change, and what is actually displayed, are two totally different things.  Sometimes the code just isn't translated correctly.  The bottom line is make sure the CMS fits your needs.  If you are expecting to be able to create new pages, add images, or change the menu structure, just make sure the CMS allows you to do this and that it's very easy to use.

 I hope this helps!

~Chris